Home / 141,859.76-195,767.08-78,196.19

Finding the Fourth Proportional to 141,859.76, 195,767.08 and 78,196.19

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Solution

The fourth proportional to 141,859.76, 195,767.08 and 78,196.19 is: 107,911.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,859.76 : 195,767.08 = 78,196.19 : x
  2. Step 2: Convert to fraction form
    141,859.76/195,767.08 = 78,196.19/x
  3. Step 3: Cross multiply
    141,859.76x = 195,767.08 × 78,196.19
  4. Step 4: Simplify right side
    141,859.76x = 15,308,238,609.10
  5. Step 5: Solve for x
    x = 15,308,238,609.10/141,859.76
  6. Step 6: Final answer
    x = 107,911.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.